Support for electrical fixtures



Feb., 15, 1949. J, E, wlLLlAMs 2,461,794

I SUPPORT FOR ELECTRICAL FIXTURES Filed oct. 2Q 1945- sis - will', /m

Inventor l n ./qyf". )MLU/JMS.

Patented Feb. 15, 1949 g SUPPORT. Fon-ELECTRIeMiFDQrUREs I Jay E.`;Williams, DubuquaJow-a Applieimm-october 2, 1945, serial No. 619,793

3 Claims.

The instant invention relates to electrical installation and has for its object to provide an adjustable support for boxes, etc.

Another object of the invention is to provide a support having means for biting into opposing studs.

A further object of this invention is to provide an expansible support for an electrical fixture.

A still further object of the invention is to provide a support which may be installed without removing flooring or wall for installation thereof.

Other features and advantages will become more readily apparent from the following description and the accompanying illustrative drawings in which:

Figure 1 is a vdiagrammatic view illustrating the application of my invention,

Figure 2 is a longitudinal sectional view of my support,

Figure 3 is a transverse sectional view thereof,

Figure 4 is a detail enlarged of one end of the device, and

Figure 5 is a detail longitudinal sectional view of the reverse end thereof.

In the above drawings as Well as in the specii my device, which is to be limited only in ac cordance with the appended claims. And while I have stated the primary field of utility of my invention it remains obvious that it may bev employed in any other capacity wherein it may be found applicable.

In the drawings forming a part of this application ID indicates my invention which consists of a tube II, the bore at the end I2 thereof being reduced in diameter and screw-threaded as at I'3.' Threaded into the tube I I is a long rod I4 threaded throughout its length as at I5. The outer terminal I6 of rod I4 is reduced to a substantially needle point I1. Ther end I8 of tube I I is provided with sharp edge I8'.

Slidably adjustablevand frictionally supported on the tube II is a collar I9 provided with a ytubular stud or hickey 20, the threading 2| ofv which is adapted to receive the nut 22 after the stud or hickey has been projected through the inner wall 23 of a switch or other electrical appliance box 24. The stud 20 has a bore 25 eX- tending to the reduced threaded bore 26 extending to and through the collar I9, whereby after the collar has been adjusted upon the tube Il to align with the box opening 2'I in a wall or floor 28, a set screw 29 may be tightened up against the tube II thus securing the member I9 in place.

The above described support and box retainer may be projected longitudinally through the box opening 2l' as indicated in Figure 1 of the drawings and the tube II rotated by hand until the part I'I and edge I8 project far enough into the studding 3l] and 3| suiciently to hold its position, then a pipe wrench' is applied to rotate the tube II enough to cause the said point and teeth to penetrate far enough into the studding for permanent connection therewith. Now the collar I9 is shifted to a desired position and the -screw 29 l tightened. The device may as readily be removed when necessary.

From theforegoing description it will be obvious that I have provided a support which may be applied and adjusted for connection with a box 24 in about a minute and that the box 24 may be rigidly and securely connected-thereto.

It is thought that persons skilled in the art to which the invention relates will be able to obtain a clear understanding of the invention after considering the description in connection with the drawings. Therefore, a more lengthy description is regarded as unnecessary.

Changes in shape, size and rearrangement of details and parts such as come within the purview of the invention claimed may be resorted to, in actual practice, if desired.

Having now described my invention that which I claim as new and desire to procure by Letters Vsleeve for engaging said tube for locking `the hickey in the desired adjusted position.

2. A positioning means for xture supporting bars comprising an elongated threaded rod having a stud penetrating tooth at one end thereof,l

an actuating tube received around the rod and having Stud engaging and penetrating teeth at 5 one end thereof, means formed in said tube for selectively moving said rod in and out of the tube to advance the toothed end thereof into a stud, a sleeve adjustably received on the tube,

an externally threaded hollow hickey depending 10 integrally from said sleeve, a locking bolt disposed in said hollow hickey and extending through said sleeve for engaging said tube and locking the hickey in the l desired adjusted position.

3. The combination of claim 2, wherein said REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 1,332,690 Rosenfeld Mar. 2, 1920 15 1,681,010 Raggio Aug. 14, 1928 Steketee Dec. 20, 1938 

